Eagles are large, powerful birds of prey. These meat-eaters have a large beak and large, clawed feet (which they use to catch their prey). They hunt during the day, swooping down upon their prey. The Harpy Eagle (Harpia harpyja) is one of the largest eagles and most powerful birds of prey in the world; it preys upon large mammals, like sloths and monkeys. Stellar's Sea eagle (Haliaeetus pelagicus) is another huge eagle; it lives on the eastern coast of Russia.

Eagles mate for life (they are monogamous) and use the same nest each year to raise their slow-developing young.